Jeremy looked at this table of prices and said the cost for renting a bike is $7.00 per hour. What mistake may Jeremy have made? Explain.

Answer:

Jeremy mistook the $7.00 cost for 2 hours as the cost for 1 hour. The unit rate is found by dividing cost by hours: $7.00 ÷ 2 = $3.50 per hour. The other pairs in the table also give $3.50 per hour.